Identify an anion.
A)an atom that has lost an electron
B)an atom that has gained an electron
C)an atom that has lost a neutron and a proton
D)an atom that has gained a neutron

Question

Quizplus · Accepted Answer

An anion is defined as an ion that has a negative charge, which means it has gained one or more electrons to its outermost shell. Therefore, option B is the correct answer as it represents an atom that has gained an electron. Option A represents a cation, which is an ion that has a positive charge, having lost one or more electrons from its outermost shell. Option C and D are not related to the concept of anions.

Identify an Anion